The road toll in NSW is up to 233 for 2016. Ms McKay says there is a serious imbalance in the Baird government's approach as fines are increasing, but fatalities aren’t slowing.

In response to Ms McKay's claims Bernard Carlon, Executive Director of NSW Centre For Road Safety says the number of mobile speed cameras has not increased.

"The total number of mobile speed camera locations and the number of hours they enforce has not changed, remaining at 640 locations and 7,000 hours per month," Mr Carlon said.

He said the 113 camera locations released on Friday are replacement cameras. Not new cameras.

"Mobile speed camera locations that could no longer be used for enforcement as there were no suitable places to park the vehicle and position the warning signs were decommissioned on 1 August and replaced with 113 new locations," he said.

"In July we sent out notification by email and SMS to every customer who has signed up to one of our alert services.

"All speed cameras in NSW are clearly marked – the most visible in the country. Mobile speed camera vehicles are covered in fluoro markings and warning signs are placed 250 metres before, 50 metres before and up to 50 metres after the vehicle. This ensures motorists recognise the enforcement activity and slow down."